One-dimensional, Multidimensional and Unidimensional Perspectives in a Multifunctional Device: Comparison of Three Models

Although a significant body of research on the acceptance of information systems has been conducted, few studies look at the acceptance of multifunctional devices. This study provides three models for analysing various functions within the device. The first model is the multifunctional one-dimensional model where factors are evaluated separately by each function. The second model, the enhanced multifunctional one-dimensional model, analyses factors not only by the function, but also theoretically formulates the relationship among intentions. The last model, the multidimensional model with unidimensional subconstructs, aggregates constructs from the same functions to measure higher level factors, i.e., constructs in the device level. The models are tested using a survey method. This study concludes that the latter two models offer an opportunity for researchers and practitioners to decide whether to evaluate each factor separately by each function and/or to aggregate constructs from the same functions to measure higher level factors.